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tert-Butyl N-[(2S)-1-aminopropan-2-yl]carbamate146552-71-838 % similar 1,1-Dimethylethyl 2-oxo-1-pyrrolidinecarboxylate85909-08-638 % similar (R)-tert-Butyl 1-methyl-2-oxoimidazolidine-4-carboxylate143996-78-538 % similar 1-(tert-Butoxycarbonyl)-4-piperidinecarboxylic acid174316-71-338 % similar [1-(tert-Butoxycarbonyl)azetidin-3-yl]acetic acid183062-96-638 % similar tert-Butyl (R)-3-formylpyrrolidine-1-carboxylate191347-94-138 % similar (S)-tert-Butyl 3-formylpyrrolidine-1-carboxylate191348-04-638 % similar Boc-N-methyl-L-valine45170-31-838 % similar (+-)-1-(tert-Butoxycarbonyl)pyrrolidine-3-carboxaldehyde59379-02-138 % similar N-Boc-piperidine-4-carboxylic acid84358-13-438 % similar (R)-2-((tert-Butoxycarbonyl)(methyl)amino)-3-methylbutanoic acid89536-85-638 % similar 2-((2R)-1-((tert-Butoxy)carbonyl)pyrrolidin-2-yl)acetic acid101555-60-637 % similar 1-tert-Butyl 2-methyl piperidine-1,2-dicarboxylate167423-93-037 % similar 1,1-Dimethylethyl (2S)-2-(aminocarbonyl)-1-pyrrolidinecarboxylate35150-07-337 % similar Boc-N-methyl-L-leucine53363-89-637 % similar (S)-2-(1-BOC-2-pyrrolidinyl)acetic acid56502-01-337 % similar N-Boc-3,4-dehydro-L-proline methyl ester74844-93-237 % similar Methyl 4-[(1,1-dimethylethoxy)carbonyl]-2-piperazineacetate183742-33-837 % similar tert-Butyl 3-phenylpiperazine-1-carboxylate502649-25-437 % similar tert-Butyl 4-hydroxypiperidine-1-carboxylate109384-19-237 % similar